3 Nadis

The three nadis are the three subtle energy channels, which some say are in the spinal column: these are Ida, Pingala and the Sushumnah. These reflect the 3 creative fires and the 3 gunas.

These are paralled by the 3 pillars, the 3 trees, the 3 rivers.

Ida Ganges White
Pingala Yamuna Red
Sushumnah Sarasvati Many Colours (Rainbow).